<%@ page language="java" contentType="text/html; charset=UTF-8"
         pageEncoding="UTF-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Java个人博客系统后台登录页面</title>
    <script src="${pageContext.request.contextPath}/static/js/jquery-3.3.1.min.js"></script>
    <STYLE>
        body {
            background: #ebebeb;
            font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
            color: #222;
            font-size: 12px;
        }

        * {
            padding: 0px;
            margin: 0px;
        }

        .top_div {
            background: #008ead;
            width: 100%;
            height: 400px;
        }

        .ipt {
            border: 1px solid #d3d3d3;
            padding: 10px 10px;
            width: 290px;
            border-radius: 4px;
            padding-left: 35px;
            -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
            box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
            -webkit-transition: border-color ease-in-out .15s, -webkit-box-shadow ease-in-out .15s;
            -o-transition: border-color ease-in-out .15s, box-shadow ease-in-out .15s;
            transition: border-color ease-in-out .15s, box-shadow ease-in-out .15s
        }

        .ipt:focus {
            border-color: #66afe9;
            outline: 0;
            -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(102, 175, 233, .6);
            box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 8px rgba(102, 175, 233, .6)
        }

        .u_logo {
            background: url("${pageContext.request.contextPath}/static/image/username.png") no-repeat;
            padding: 10px 10px;
            position: absolute;
            top: 43px;
            left: 40px;

        }

        .p_logo {
            background: url("${pageContext.request.contextPath}/static/image/password.png") no-repeat;
            padding: 10px 10px;
            position: absolute;
            top: 12px;
            left: 40px;
        }

        a {
            text-decoration: none;
        }

        .tou {
            background: url("${pageContext.request.contextPath}/static/image/tou.png") no-repeat;
            width: 97px;
            height: 92px;
            position: absolute;
            top: -87px;
            left: 140px;
        }

        .left_hand {
            background: url("${pageContext.request.contextPath}/static/image/left_hand.png") no-repeat;
            width: 32px;
            height: 37px;
            position: absolute;
            top: -38px;
            left: 150px;
        }

        .right_hand {
            background: url("${pageContext.request.contextPath}/static/image/right_hand.png") no-repeat;
            width: 32px;
            height: 37px;
            position: absolute;
            top: -38px;
            right: -64px;
        }

        .initial_left_hand {
            background: url("${pageContext.request.contextPath}/static/image/hand.png") no-repeat;
            width: 30px;
            height: 20px;
            position: absolute;
            top: -12px;
            left: 100px;
        }

        .initial_right_hand {
            background: url("${pageContext.request.contextPath}/static/image/hand.png") no-repeat;
            width: 30px;
            height: 20px;
            position: absolute;
            top: -12px;
            right: -112px;
        }

        .left_handing {
            background: url("${pageContext.request.contextPath}/static/image/left-handing.png") no-repeat;
            width: 30px;
            height: 20px;
            position: absolute;
            top: -24px;
            left: 139px;
        }

        .right_handinging {
            background: url("${pageContext.request.contextPath}/static/image/right_handing.png") no-repeat;
            width: 30px;
            height: 20px;
            position: absolute;
            top: -21px;
            left: 210px;
        }

    </STYLE>

    <SCRIPT type="text/javascript">
        $(function () {
            //得到焦点
            $("#password").focus(function () {
                $("#left_hand").animate({
                    left: "150",
                    top: " -38"
                }, {
                    step: function () {
                        if (parseInt($("#left_hand").css("left")) > 140) {
                            $("#left_hand").attr("class", "left_hand");
                        }
                    }
                }, 2000);
                $("#right_hand").animate({
                    right: "-64",
                    top: "-38px"
                }, {
                    step: function () {
                        if (parseInt($("#right_hand").css("right")) > -70) {
                            $("#right_hand").attr("class", "right_hand");
                        }
                    }
                }, 2000);
            });
            //失去焦点
            $("#password").blur(function () {
                $("#left_hand").attr("class", "initial_left_hand");
                $("#left_hand").attr("style", "left:100px;top:-12px;");
                $("#right_hand").attr("class", "initial_right_hand");
                $("#right_hand").attr("style", "right:-112px;top:-12px");
            });
        });

        function checkForm() {
            var username = $("#username").val();
            var password = $("#password").val();
            if (username == null || username == "") {
                $("#error").html("用户名不能为空！");
                return false;
            }
            if (password == null || password == "") {
                $("#error").html("密码不能为空！");
                return false;
            }
            return true;
        }
    </SCRIPT>
</head>
<body>
<DIV class="top_div">
</DIV>
<form action="${pageContext.request.contextPath}/loginUser" method="post" onsubmit="return checkForm()">
    <DIV style="background: rgb(255, 255, 255); margin: -100px auto auto; border: 1px solid rgb(231, 231, 231); border-image: none; width: 400px; height: 200px; text-align: center;">
        <DIV style="width: 165px; height: 96px; position: absolute;">
            <DIV class="tou">
            </DIV>
            <DIV class="initial_left_hand" id="left_hand">
            </DIV>
            <DIV class="initial_right_hand" id="right_hand">
            </DIV>
        </DIV>
        <P style="padding: 30px 0px 10px; position: relative;">
            <SPAN class="u_logo"></SPAN>
            <INPUT id="username" name="username" class="ipt" type="text" placeholder="请输入用户名">
        </P>
        <P style="position: relative;">
            <SPAN class="p_logo"></SPAN>
            <INPUT id="password" name="password" class="ipt" type="password" placeholder="请输入密码">
        </P>
        <DIV style="height: 50px; line-height: 50px; margin-top: 30px; border-top-color: rgb(231, 231, 231); border-top-width: 1px; border-top-style: solid;">
            <P style="margin: 0px 35px 20px 45px;">
                <SPAN style="float: left;"><a href="${pageContext.request.contextPath}/index">Light Blog</a></SPAN>
                <span><font color="red" id="error">${errorInfo }</font></span>
                <SPAN style="float: right;">
	              <input type="submit"
                         style="background: rgb(0, 142, 173); padding: 7px 10px; border-radius: 4px; border: 1px solid rgb(26, 117, 152); border-image: none; color: rgb(255, 255, 255); font-weight: bold;"
                         value="登录"/>
	         </SPAN>
            </P>
        </DIV>
    </DIV>
</form>
</body>
</html>